Streamlining Your SLA Workflow: Formlabs 4L + Flex Build Platform

Formlabs has revolutionized resin-based 3D printing with powerful machines like the Form 4L and innovative accessories such as the Flex Build Platform. Here’s a closer look at how these tools streamline workflows, improve part removal, and make professional SLA printing accessible for real-world applications.

Formlabs vs. Traditional SLA Printing

Traditional SLA 3D printing often required significant manual effort, messy resin handling, and tedious part removal. Formlabs simplifies this process with intuitive workflows, ergonomic build platforms, and automated wash and cure systems. The result is a cleaner, faster, and more professional approach to resin-based additive manufacturing.

Resin Printing Workflow: From Build to Wash

SLA 3D printing is known for its high resolution and precision, but it can be messy. Proper safety and workspace setup are essential—think nitrile gloves, designated resin zones, and fume extraction systems to manage odors and vapors.

Once parts are printed on the Form 4L, the process begins with carefully removing the build platform, angling it to catch drips, and securing it on a holding station. Resin-contaminated parts are then scraped free using high-quality tools like metal or plastic scrapers. A light rinse with isopropyl alcohol prepares the parts before moving them to the wash station.

Automotive Applications in Action

Two standout projects highlight the real-world impact of SLA printing:

  • Toyota Camry Fog Light Shroud – A missing OEM part was 3D scanned, cleaned up in CAD, and printed in resin. The result? A cost-effective replacement without relying on hard-to-find parts.
  • Porsche Carrera GT Ashtray Replacement – A custom piece was designed to house a lift system button, protecting the multimillion-dollar car’s front end from speed bumps. The final version even integrated a custom logo for a clean, OEM-level look.

These projects demonstrate how scanning, CAD modeling, and SLA printing can solve real automotive challenges with speed and precision.

Why Automotive Benefits from SLA 3D Printing

For the automotive industry, SLA printing is a game-changer. High-resolution prints make it possible to replicate discontinued OEM parts, create prototypes for modifications, and deliver professional finishes suitable for both restoration and customization. The ability to scan, model, and print parts directly reduces reliance on costly suppliers and long lead times.

Flex Build Platform L: Easier Part Removal

Traditionally, removing prints from the build plate required scrapers and patience, often leading to accidental damage or stubborn supports. The new Flex Build Platform L changes that completely.

By flexing the spring steel plate, parts simply pop off—no heavy scraping required. The system supports both large and small part removal methods, reducing risk of damage and saving valuable time. The detachable design also makes cleaning straightforward, ensuring long-term durability.

Washing, Curing, and Final Results

After removal, parts go through the isopropyl alcohol wash cycle to dissolve excess resin. Once washed and drained, support structures are snapped or crushed off with ease, leaving behind smooth surfaces that closely resemble OEM components.

The curing oven then finalizes the parts. For certain resins, like black, care must be taken to avoid over-curing. The result? Strong, precise, and professional-grade parts ready for installation or further post-processing.

Expanding Beyond Prototyping

The Formlabs Form 4L paired with the Flex Build Platform L demonstrates how SLA technology is no longer limited to prototyping. From custom automotive solutions to professional-grade replacements, these machines are enabling engineers, designers, and makers to create functional parts faster and cleaner than ever before.

Whether for OEM part replacements, motorsport modifications, or custom engineering projects, SLA resin printing provides the resolution and accuracy that traditional methods cannot match.

Interested in learning more? Explore the full range of Formlabs printers, wash stations, and curing systems at Vision Miner.